门克庆煤矿高温工作面热环境研究  

Study on thermal environment of high temperature working face in Menkeqing Coal Mine

作　　者：李晓坤 Li Xiaokun(Menkeqing Coal Mine,Zhongtian Hechuang Coal Branch,Erdos 017000,China)

机构地区：[1]中天合创煤炭分公司门克庆煤矿,内蒙古鄂尔多斯017000

出　　处：《能源与环保》2024年第11期16-22,共7页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：煤炭安全精准开采国家地方联合工程研究中心开放基金资助项目(EC2023009,EC2021016)。

摘　　要：随着浅表煤层资源日益匮乏,各煤矿采掘深度正不断增加,这导致了煤矿热害问题严峻,表现为煤矿掘进和回采工作面环境温度过高。为了解决门克庆煤矿3105、3106等工作面热害问题,并为待采工作面热环境预测提供依据,进行了地表参数测定、全矿井热害基础参数测定及煤岩导热性实验,并对热害成因进行了分析。结果表明,对深井开采,井下气候受季节性高温影响较小,工作面进风路线、回风路线、硐室、泵站、工作面上下隅角等距离副井井口较远地点,各测点温度变化不大,湿度对环境温度有较大影响;煤岩热物理参数为散热量计算提供数据基础,通过计算3105、3106工作面各类热源散热量,得到机电设备、围岩及空气自压缩散热是导致热害主要成因。研究为后续工作面降温方向提供了指导。With the increasing scarcity of shallow coal seam resources,the depth of mining in various coal mines is constantly increasing,which has led to a severe problem of heat damage in coal mines,manifested by high environmental temperatures in coal mine excavation and extraction working faces.In order to solve the problem of heat damage in the No.3105 and No.3106 working faces of Menkeqing Coal Mine and provide a basis for predicting the thermal environment of the working faces to be mined,surface parameters were measured,basic parameters of thermal damage in the entire mine were measured,and thermal conductivity experiments were conducted on coal and rock.The causes of thermal damage were analyzed.The results show that for deep well mining,the underground climate is less affected by seasonal high temperatures.The intake and return air routes of the working face,chambers,pumping stations,and the upper and lower corners of the working face are closer to the wellhead of the auxiliary shaft.The temperature changes at each measuring point are not significant,and humidity has a significant impact on the environmental temperature;the thermal property parameters of coal and rock provide data basis for the calculation of heat dissipation.By calculating the heat dissipation of various heat sources in No.3105 and No.3106 working faces,it is found that the mechanical and electrical equipment,surrounding rock and air self compression heat dissipation are the main causes of heat damage,which provides guidance for the direction of subsequent working face cooling.

关 键 词：深部矿井 热源分布 煤岩导热性 热源散热量 热害致因 

分 类 号：TD727.2[矿业工程—矿井通风与安全]